TREA

Shigeya Ashizaki

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Shadow mask type color cathode ray tube
    • Patent number 5,155,410
    • Issue date Oct 13, 1992
    • Matsushita Electric Industrial Co., Ltd.
    • Hiromi Wakasono
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Color cathode ray tube gun having control grid of varying thickness
    • Patent number 5,128,586
    • Issue date Jul 7, 1992
    • Matsushita Electronics Corporation
    • Shigeya Ashizaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Deflection yoke
    • Patent number 4,939,415
    • Issue date Jul 3, 1990
    • Matsushita Electronics Corporation
    • Katsuyo Iwasaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cathode ray tube apparatus
    • Patent number 4,831,309
    • Issue date May 16, 1989
    • Matsushita Electronics Corporation
    • Shigeya Ashizaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Color picture tube having a face panel with an outer face having a...
    • Patent number 4,777,401
    • Issue date Oct 11, 1988
    • Matsushita Electronics Corporation
    • Kakuichiro Hosokoshi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Method for making a phosphor layer
    • Patent number 4,758,449
    • Issue date Jul 19, 1988
    • Matsushita Electronics Corporation
    • Masamichi Kimura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    In-line electron gun
    • Patent number 4,728,859
    • Issue date Mar 1, 1988
    • Matsushita Electronics Corporation
    • Masao Natsuhara
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Color cathode ray tube apparatus
    • Patent number 4,701,677
    • Issue date Oct 20, 1987
    • Matsushita Electronics Corporation
    • Shigeya Ashizaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    In-line type electron gun
    • Patent number 4,612,474
    • Issue date Sep 16, 1986
    • Matsushita Electronics Corporation
    • Shigeya Ashizaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cathode ray tube with magnetic pole pieces which support a ring getter
    • Patent number 4,609,847
    • Issue date Sep 2, 1986
    • Matsushita Electronics Corporation
    • Shigeya Ashizaki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Monochromatic picture tube
    • Patent number 4,485,328
    • Issue date Nov 27, 1984
    • Matsushita Electronics Corporation
    • Chikayoshi Ninagawa
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Cathode-ray tube device
    • Patent number 4,473,775
    • Issue date Sep 25, 1984
    • Matsushita Electronics Corporation
    • Kakuichiro Hosokoshi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Cathode-ray tube having a mixture of long and short persistence pho...
    • Patent number 4,424,467
    • Issue date Jan 3, 1984
    • Matsushita Electronics Corporation
    • Mutsuo Masuda
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    In-line electron gun
    • Patent number 4,275,332
    • Issue date Jun 23, 1981
    • Matsushita Electronics Corporation
    • Shigeya Ashizaki
    • H01 - BASIC ELECTRIC ELEMENTS